Door-holder.



J. MEI/IE0;

DOOR HOLDER.

APPLICATION FILED FEB. I3. m5.

1 ,34? 1 ,478. Patented $ept. 25, MW.

2 SHEETS-SHEET I.

. l l -f: C) W IIIIII IIII A 1. I'll J. NE-MEC. DOOR HODLDER.

. 13. 1 1s. lagig iegw APPLICATION FILED FEB- 9 v ?atentedsept 25,191?

2 SHEETs-SHEH 2..

JOSEPH NEMEc, or CHICAGO, ILLINOIS,

ASSIGNO R'OF ONE-THIRD TC) ALBERT I4.

BEARIDSLEY AND ONE-THIRD T0 CHARLES E. OLIVER, "BOTH OF CHICAGO,

ILLINOIS. I

1,241,4Jzs.

To all whom it may concern Be it known that I, JosEPI-I NEMEo, a subject of the Emperor of Austria, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful v Improvements in Door Holders, of which the folowing is a specification.

This invention relates to improvements in door holders, and has for its object to provide a device of that nature which may be used in combination 'with a door closing mechanism. I

It has been found desirable, especially in connection with railway car doors, to provide some means of maintaining the door in open or partially open position at certain times. These doors, for obvious reasons, are equipped with automatic closing means serving to normally return the same to closed position, and these devices will ordinarily prevent the maintaining of the doors in such open position. Devices have been provided for this purpose such as foot depressible checks, wedges, etc. but the same are not satisfactory for many reasons.

'My invention consists 1n provlding an improved form of door holder which is pref-.

erably arranged in combination with the door returning mechanism, and which, is operable at the will of the operator to' coact with the door closingmechanism to prevent automatic closing of the door until'the' holder is thrown out of operative position.

Still another object is to provide a device ofthis'nature which, while in operative relation with respect to the door closing means, will permit opening of the door, although preventing the returning of the same to closed position. I I

Still another object is the provision of an additional'holding member coacting with an element of the door closingdevice, thesame being operative preferablyonly at full open position of the door to maintain thesame in such position and capable of being thrown out ofoperation by forcible starting of the door from open position. i v

These'and'other objects willbe more fully described and set forth in the following specifications and shown in the acompanying drawings, in which, Figure 1 is a front elevation of a door showingmy invention applied thereto;

Fig. 2 is a plan view of a portion of the door closing and holding mechanism;

DOOR-HOLDER.

Specification of Letters Patent. I at t Sept. 25, 1917,

Application filed February 13, 1915. f Serial No. 8,053.

I Fig. 3 is a vertical section through a portion of the same .taken along the line 33 'of'Fig. 2; c f

Fig. 4. is a perspective of the cap member; Fig. 5 is a perspective of the pawl mechanlsm; f

F 6 is a plan view of. the additional check or retaining member v Fig. 7 is a vertical section through a portion ofthe same, a part thereof being shown in elevation; and

.Fig. 8' is a transverse section alongthe line 8+8 of Fig.2.

Like numerals refer to like elements throughout thedrawings. 1

In the embodiment of my, invention shown and described, I have utilized a wellknown form of door closing mechanism indicated generally by numeral10, see Fig. 1, the same comprising, among other elements, a rotatble shaft 11 operatively connected to what is known as a check device intended to .cushionthe final closing movement of the door. Inasmuch asthi's does not formaportion of my invention, and is not directly con- "cerned therein, '1 have not deemed it necessary to describethe same. The return member 10 comprises also a casing 12 having the base flange 13 arranged to be attached by screws or the like to a door 14, as shown in Fig. 1 Adetachable cap 15 is provided. and is mountedupon and attached to the top of easing 12,-as shownin Fig. 3, for-example, being provided with the cut-out portions 15. arranged to engage suitable upstanding shoulders fupon the casing 12. A ratchet member, generally indicated by numeral 16,

isprovided, the same beingfformed with an.

elongatedhub or sleeve 16 closely fitting around and attached to the shaft '11.. This ratchet member 16 is provided with the peripherally locatedratchet teeth 16 formed on the wheel portion 16 The latter is provided with a circular recess 16 on its underside and closely fits upon the circular flange 15 of the cap 15, the latter being apertured at 15 'to permit passage therethrough of the hub 1 6 and shaft 11, as shown in Fig. 3, for example. This construction provides a hearing for the ratchet wheel 16, the latter being arranged to rotate upon and relative to the cap 15, as will be apparent. 1A coiled spring 18 is carried in the casing 12, as is well known, in connection with these devices, the same having one end attached to the casing so I and the other end'attached to the hub 16 so that rotation from rest of the latter will tend to coil the spring 18 more closely, the latter thereby operating to resist such movement from rest position, as I term it, and also operating to normally return the mechanism to rest position. As is usual in connection with these devices, I provide a crank arm 19 apertured at one end and attached thereat to the ratchet wheel 16 and shaft 11 by means of a nut 20 threaded onv a reduced I end of the shaft 11, see Figs. 2 and 3. -This 7 a l 1 I u Jamb, or' the llke. This mechanism is comcrank arm is pivotally attached at its other end to a rod 321, the latter being operatively attached to a plate 22 attached to the door inon tov door closing devices, and it-will be a readily apparent that when the door 14; is moved from closed position the rod 21 and crank 19 will operate to partially rotate the shaft 11 and ratchet wheel 16agajinst the action ofthe spring 18. Whenthe door is released the spring will normally return the same to rest or closed position.

The cap'15 is provided with the outwardly extending oppositely arranged block por tioh's15, slotted and apertured as indicated by numeral 15*, see Fig.3. Slidably mount;-

ed in; one of these apertures 15 is a pawl 25 having teeth 25 see Fig. 5, at one end arranged for engagement with theteeth 16 I of ratchet wheel 16. Lugs 15 project out- Wardly from the cap 15" and are apertured as shown in Fig, 4c, for example. A link 26 is 'pivotally attachedto one of these lugs, as

shown in Fig. 2, and is also pivotally attached at its other end to a cross arm 27 which in a slot 25 in the pawl 25. and

is pivotally attached thereto intermediate its extremities. At an end this arm 27 is pivotally attached to a head 28 carried by a rod29, The latter passes through an aper tureint flange 30? of bracket 30 which is attached by screws or the'like tothe door 14.

i-Lspring 31 is coiled around the rod and extends between the head 28 and the flange 3,031 as is shown in Fig. 1. Atifls other end the rod 29 is provided with theenlarged slotted portion 29 which fits over a pin 32 carried by bell crank 33 pivotally mounted on a pin3l= at its vertex, this. latter being carried by a circular plate 3 1 see Fig. 1. To the other arm of the bell'crank 33 islpivotally attached a second rod35 which terminates at its lower extremity in a knob or manually engag'eable portion 36, being pro.-

, vided with a projecting stud or the like .which fits, in a slot 37? in a plate attached to the door. This slot is angulal'ly arranged atits lower portion, as shown in dotted lines in Fig. 1, so that the knob 36 and rod 35 my b moved er intea di r ta ned it low m pes ien, a sho n n F g The. Whe v p r on; 16" of he atch mem; ber 16 is provided with four or more thread ed holes 16 and the crank 19 isprovided v .with a pair of apertures arranged to aline with a. corresponding pair. of apertures 16 so that bolts. l6 may .be'linserted in such apertures to assist 1n securing the crank 19 to the ratchet member 16, as shown in Fig.

2. In many cases in normal use, it will not be found desirable to leave the door in open position andv consequently the mechanlsm will be arranged, as shown in Fig. 1. As-

suming, however, that it isdesired to retain the door in open or partially open position thesameanav. beopened to the place desired and the knob 36 moved sidewise to allow it to slide to the upper end of slot 37?, this .movementbeing effected by spring 31. At

as will be obvious, the rods 35 and 29, and. v

,bell crank-3.3 will be operated to withdraw the ratchet .25. from engagement with the teeth 16 of ratchet wheel 16, whereupon the spring 18 will effect the closing of the door. I have preferably arranged the teeth25 .of the pawl and teeth16 of the ratchet so that the latter will slip by the formeragainst the action of spring 31,, when. the doorj is opened, so that if knob, 36, has been allowed to ride to the upper portion of slot 3'Zflopiening of the door will ;not be prevented; consje quently it will be obvious that opening movement of the deer-may be effectedno' matter 1n What/11051151011 the knob 36 1naybe. As an additionalcheckor holding means to maintain the door in fully open position independently of the mechani'sm just described, I provide a detent liavingtlie wedged face 40 carried by the plunger portiorilOi, the latterbeing mounted in a sleeve 411 ofa bracketel, the latter being preferably embedded in the top. ofthe door. 11

coiled spring 42 is located around the plunger lO and coacts with a shoulder tO thereof to resist depression of the headand wedge 10. The underside of the crank 19 isiprovided with a suitableslot or depressionv 19* arranged to coact with the .checkO preferabl-y whenthe door is in fully open position,

at which time the crank 19 will lie on the upper edge of the door andthe wedge 40 wil nt r theslot l e ving to retain the door in fullyopen position. To releasethe same it isn erely necessary to forcibly start the door, the spring 42 permitting this startingmovement whereupon the returning hanism, ill per e. to se the door I Wil be o viou that my de ice.- is. suscepti'bleofmany modifications and improvements, and I do not wish to be restricted to the form shown or described beyond the scope of the appended claims.

\Vhat I claim is:

1. A rotatable shaft, a ratchet member carried thereby, means to resist movement from normal or rest position of said shaft and member, said means being adapted to normally return said shaft and members to rest position, and a pawl member arranged to engage said ratchet member to prevent return thereof to normal position.

2. A rotatable shaft, a ratchet member carried thereby, means to resist movement from normal or rest position of said shaft and member, said means being adapted to normally return said shaft and members to rest position, a pawl member arranged to engage said ratchet member to prevent return thereof to normal position, and means controlled from a position removed from said ratchet member to move said pawl out of engagement with said ratchet.

3. A rotatable shaft, a ratchet member carried thereby, means to resist movement from normal or rest position of said shaft and member, said means being adapted to normally return said shaft and members to rest position, a pawl member arranged to engage said ratchet member to prevent return thereof to normal position, means to move said pawl out of engagement with said ratchet, and means to hold the same out of engagement.

4c. A rotatable shaft, a ratchet member carried thereby, means to resist movement from normal or rest position of said shaft and member, said means being adapted to normally return said shaft and members to rest position, a pawl member arranged to engage said ratchetmember to prevent return thereof to normal position, means to move said pawl out of engagement with said ratchet, said means comprising a bell crank, a rod attached thereto, and a second rod also attached thereto and arranged for manual operation.

5. A rotatable shaft, a ratchet member carried thereby, means to resist movement from normal or rest position of said shaft and member, said means being adapted to normally return said shaft and members to rest position, a pawl member arranged to engage said ratchet member to prevent return thereof to normal position, means to move said pawl out of engagement with said ratchet, said means comprising a bell crank, a rod attached thereto, a second rod also attached thereto, and a manually engageable member carried by said last named rod, said member being provided with a portion mounted in a slotted plate.

6. A rotatable shaft, a ratchet member carried thereby, means to resist movement from normal or rest position of said shaft and member, said means being adapted to normally return said shaft and members to rest position, a pawl member arranged to engage said ratchet member to prevent return thereof to normal position, means to move said pawl out of engagement with said ratchet, said means comprising a bell crank,

a rod attached thereto, a second rod also attached thereto, and a manually engageable member carried by said last named rod, said member being provided with a portion mounted in a slotted plate, said plate being arranged to engage and hold said mechanism to prevent engagement of said pawl with said ratchet when desired.

7. In combination, a door closing member comprising a rotatable member and a casing, a movement resisting and returning member operatively inserted between said rotatable member and casing, an apertured bearing block carried by said casing, a rotatable ratchet carried by said rotatable member, and a pawl slidably mounted in said bearing block for engagement with said ratchet.

8. In combination, a door closing member comprising a rotatable member and a casing, a movement resisting and returning member operatively inserted between said rotatable member and easing, an apertured bearing block carried by said casing, a rotatable ratchet carried by said rotatable member, a pawl slidably mounted in said bearing block for engagement with said ratchet, and means controlled from a distance to move said pawl into or out of engagement with said ratchet.

9. In combination, a door closing member comprising a rotatable member and a casing,

a movement resisting and returning member hold said pawl in engagement with said' ratchet.

In testimony whereof, I have subscribed my name.

JOSEPH NEMEG.

Witnesses:

ARCHIE D. CARoTHERs, GILBERT L. ANDERSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, -Washington, D. G. 

